Journal
SCIENCE
Volume 312, Issue 5776, Pages 1047-1050Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1125596
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Funding
- NIDA NIH HHS [DA11723, DA14883] Funding Source: Medline
- NIMH NIH HHS [MH52797] Funding Source: Medline
- NINDS NIH HHS [NS045790] Funding Source: Medline
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Interactions with other responsive agents lie at the core of all social exchange. During a social exchange with a partner, one fundamental variable that must be computed correctly is who gets credit for a shared outcome; this assignment is crucial for deciding on an optimal level of cooperation that avoids simple exploitation. We carried out an iterated, two-person economic exchange and made simultaneous hemodynamic measurements from each player's brain. These joint measurements revealed agent-specific responses in the social domain (me'' and not me'') arranged in a systematic spatial pattern along the cingulate cortex. This systematic response pattern did not depend on metrical aspects of the exchange, and it disappeared completely in the absence of a responding partner.
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